Japan Flora: Rhizomes short, thick, with thickened roots; stems erect, 30-50 cm. long, with spreading somewhat reflexed hairs; radical and lower cauline leaves long-petiolate, 8-12 cm. across, deeply cordate at base, deeply 5- to 7-lobed, the lobes rhombic-obovate, acute, irregularly incised and loosely serrate; stipules free or connate, brown, membranous; flowers terminal, the pedicels erect, with long, spreading, gland-tipped hairs; sepals oblong, with spreading hairs; petals rose-purple, 12-15 mm. long; filaments long-hairy on lower half; free portion of styles 3-4 mm. long. June-Aug. Mountains.

Hokkaido, Honshu (centr. and northw.); rather rare.  

f. onoei (Fr. & Sav.) Hara. Stems lower; flowers deeper colored; leaves pilose chiefly on nerves beneath. Alpine. The typical phase occurs in Korea, China, and e. Siberia